Bangalore, officially Bengaluru, is the capital of the Indian state of Karnataka. Bagalore is the IT hub of India and most of the top leading IT companies are in Bangalore. Now a days Bangalore is also famous for BPO"s which has become the leading industry of Bangalore. Located on the Deccan Plateau in the south-eastern part of Karnataka, Bangalore is India's third most populous city and fifth-most populous urban agglomeration.It is home to numerous public sectors such as heavy industries, software companies, aerospace, telecommunications, machine tools, heavy equipment, and defence establishments.

Bangalore is known to be the Silicon Valley of India due to its pre-eminent position as the leading contributor to India's IT industry.Bangalore has developed into one of India's major economic hubs and was mentioned by CNN as one of the "best places to do business in the wired world".Though historically attested at least since 900 CE, Kempe Gowda I, is widely regarded as the founder of modern Bangalore, he built a mud fort and established it as a province of the Vijayanagara Empire.

During the British Raj, it became a centre for colonial rule in South India. The establishment of the Bangalore Cantonment brought in large numbers of migrants from other parts of the country. Since independence in 1947, Bangalore grew to become the capital of Karnataka state. Today, as a large and growing metropolitan in the developing world, Bangalore is home to some of the most well-recognized colleges and research institutions in India, and has the second-highest literacy rate in the nation.

Bangalore lies in the southeast of the South Indian state of Karnataka. It is in the heart of the Mysore Plateau (a region of the larger Precambrian Deccan Plateau) at an average elevation of 920 m (3,018 feet). It is positioned at 12.97° N 77.56° E and covers an area of 741 km² (286 mi²).

The majority of the city of Bangalore lies in the Bangalore Urban district of Karnataka and the surrounding rural areas are a part of the Bangalore Rural district. The Government of Karnataka has carved out the new district of Ramanagaram from the old Bangalore Rural district.The topology of Bangalore is flat except for a central ridge running NNE-SSW. The highest point is Doddabettahalli, which is 962 m (3,156 ft) and lies on this ridge.

No major rivers run through the city, though the Arkavathi and South Pennar cross paths at the Nandi Hills, 60 km (37 mi.) to the north. River Vrishabhavathi, a minor tributary of the Arkavathi, arises within the city at Basavanagudi and flows through the city. The rivers Arkavathi and Vrishabhavathi together carry much of Bangalore's sewage. A sewerage system, constructed in 1922, covers 215 km² (133 mi²) of the city and connects with five sewage treatment centers located in the periphery of Bangalore.